The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2022
Filed:
Nov. 12, 2020
Lei Yu, Guangdong, CN;
Lei Yu, Guangdong, CN;
Shenzhen Yuxinyuan Electric Technology Co., Ltd., Shenzhen, CN;
Abstract
A pump body of an oral irrigator includes a mount, a motor disposed at a rear end away from the mount, a pinion disposed on a shaft of the motor, an annular gear disposed on a shaft member to mesh with the pinion, a cam disposed in the annular gear and adjacent to one side, a linkage secured to the cam, front and rear plungers disposed on a front end of the linkage, and a cylindrical tube disposed on the plungers in the mount. The rotation of the cam only allows the linkage to repetitively move in a back-and-forth linear motion. Wear between the plungers and the cylindrical tube is decreased to a minimum and leakage is prevented.